006-026 Injector
Preparatory Steps
z Remove the rocker
lever cover. Refer to
Procedure 003-011 in
Section 3.
z Remove the Jacobs®
engine brake. Refer to
Procedure 020-999 in
Section 20.
z Remove the rocker
lever assembly. Refer
to Procedure 003-009
in Section 3.
z Remove the injector
supply line. Refer to
Procedure 006-051 in
Section 6.
Remove
Remove the step-timing control
(STC) oil jumper tube. Remove
and discard the sealing
washers (1) and o-ring (2).
Remove the injector hold
down clamp capscrews.
Remove the injector hold
down clamp.
CAUTION
Do not allow the STC
tappet to fall out of the
injector, engine damage
can result.
NOTE: The rocker housing
has been removed from the
illustration for clarity.
For top stop injectors, use
injector puller, Part Number
3376497.
Make sure the puller arms are
firmly under the top stop
screw.
Tighten the clamping ring (1).
Use the slide hammer to
remove the injector.
For standard injector
injectors use puller, Part
Number 3376000 or
3376497.
Place the split collar over the
injector.
Slide the locking collar over
the split collar.
Use the slide hammer to
remove the injector.
Clean and Inspect for Reuse
WARNING
When using solvents, acids,
or alkaline materials for
cleaning, follow the
manufacturer's
recommendations for use.
Wear goggles and protective
clothing to reduce the
possibility of personal injury.
WARNING
Wear appropriate eye and
face protection when using
compressed air. Flying
debris and dirt can cause
personal injury.
CAUTION
Injector plungers and barrels
have a precise fit and are
damaged easily. Only
trained technicians are
authorized to remove the
plungers. Do not allow the
plunger to fall out of the
injector.
NOTE: Sealing rings are
available in different
thicknesses to adjust the
injector protrusion.
Remove o-rings (1), (2), and
(3).
Remove the sealing ring (4)
and record its thickness.
Clean the exterior of the
injector with a lint-free cloth.
Check the area the makes
contact with the injector.
Check the orifice screen (5). It
must be clean. If there is
debris on the screen, remove
the retaining clip and the
screen for cleaning.
Clean the screen in solvent and
dry with compressed air. Install
the screen and retaining clip.
Check the STC oil jumper tube
for cracks or evidence of
fretting. If any damage is found,
the tube must be replaced.
Install
Identify the o-rings so they
can be installed in the
correct groove.
z O-ring (1) has a red
dot or stripe and is dull
gray in appearance.
z O-ring (2) has no
markings.
z O-ring (3) has a green
dot or stripe. The o-
ring has a shiny black
appearance.
Lubricate the o-rings with
vegetable oil and install
them in the appropriate
location.
Install the proper size seal
ring (4).
Place the standard injector
in the bore.
Turn the injector so the
screen points toward the
hold-down capscrew hole on
the intake side of the
cylinder head.
Do not allow the STC tappet
fall out of the STC (top stop)
injector. Damage can result.
The STC tappet must be near
the rocker lever assembly.
Do not push the injector on
the seat until it is correctly
aligned.
Place the STC injector in the
bore. Turn the injector so the
hole in the top stop screw
points to the oil supply hole
in the rocker lever housing.
Use the oil jumper tube and
the connector screw as
tools. Turn the injector until
the holes are aligned.
Remove the connector
screw and the tube.
CAUTION
Do not use a wooden tool to
push the injector onto the
seat. Failure can result
because of splinters falling
into the tappet.
Apply a quick hard push with a
blunt object that touches the
top stop screw, to seat the
injector.
A single snapping sound will be
heard when the injector is
seated properly.
CAUTION
The injector hold-down
clamp that is used on
engines with STC requires
capscrew that are 3 mm
[1/8 in] longer than those
on other K19 engines.
Install the hold-down clamp
and the self-locking
capscrews.
Alternately tighten the
capscrews in sequence so the
clamp is centered on the
injector body.
Torque
Value: 16 n.m [145 in]
Install the o-ring (2) onto the
jumper tube. Lubricate the o-
ring with clean engine oil.
Install the jumper tube and new
copper sealing washers (1).
Install the connector screw.
Torque
Value: 25 n.m [221 in-lb]
Finishing Steps
z Install the injector
supply line. Refer to
Procedure 006-051 in
Section 6.
z Install the rocker lever
assembly. Refer to
Procedure 003-009 in
Section 3.
z Adjust the over head.
Refer to Procedure
003-006 in Section 3.
z Install and adjust the
Jacobs® engine brake.
Refer to Procedure
020-999 in Section 20.
z Install the rocker lever
cover. Refer to
Procedure 003-011 in
Section 3.
Last Modified: 13-Sep-2010
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